Issue 5167/6: Changes: show \markup xxx = ... \etc assignments

[lilypond.git] / python / book_latex.py

diff --git a/python/book_latex.py b/python/book_latex.py
index fcd539aeaa8219eeeb5e8d07e4860e632ae31bb9..ec5412b1d8192bee41e292e31bc62a78798cc45d 100644 (file)
--- a/python/book_latex.py
+++ b/python/book_latex.py
@@ -3,6 +3,7 @@
 import re
 import tempfile
 import os
+import sys
 import subprocess
 import book_base as BookBase
 from book_snippets import *
@@ -12,6 +13,7 @@ global _;_=ly._
 progress = ly.progress
 warning = ly.warning
 error = ly.error
+debug = ly.debug_output
 
 # Recognize special sequences in the input.
 #
@@ -124,14 +126,15 @@ Latex_output = {
   \expandafter\preLilyPondExample
 \fi
 \def\lilypondbook{}%%
-\input %(base)s-systems.tex
+\input{%(base)s-systems.tex}
 \ifx\postLilyPondExample \undefined
 \else
   \expandafter\postLilyPondExample
 \fi
 }''',
 
-    PRINTFILENAME: '''\\texttt{%(filename)s}
+    PRINTFILENAME: r'''\texttt{%(filename)s}
+\linebreak
 ''',
 
     QUOTE: r'''\begin{quote}
@@ -163,12 +166,13 @@ LATEX_INSPECTION_DOCUMENT = r'''
 
 # Do we need anything else besides `textwidth'?
 def get_latex_textwidth (source, global_options):
+    # default value
+    textwidth = 550.0
+
     m = re.search (r'''(?P<preamble>\\begin\s*{document})''', source)
     if m == None:
         warning (_ ("cannot find \\begin{document} in LaTeX document"))
-
-        ## what's a sensible default?
-        return 550.0
+        return textwidth
 
     preamble = source[:m.start (0)]
     latex_document = LATEX_INSPECTION_DOCUMENT % {'preamble': preamble}
@@ -184,15 +188,48 @@ def get_latex_textwidth (source, global_options):
     tmp_handle.close ()
 
     progress (_ ("Running `%s' on file `%s' to detect default page settings.\n")
-              % (global_options.latex_program, tmpfile));
-    cmd = '%s %s' % (global_options.latex_program, tmpfile);
-    proc = subprocess.Popen (cmd,
-        universal_newlines=True, shell=True,
-        stdout=subprocess.PIPE, stderr=subprocess.PIPE);
-    (parameter_string, error_string) = proc.communicate ()
-    if proc.returncode != 0:
-        warning (_ ("Unable to auto-detect default page settings:\n%s")
-                 % error_string);
+              % (global_options.latex_program, tmpfile))
+    cmd = '%s %s' % (global_options.latex_program, tmpfile)
+    debug ("Executing: %s\n" % cmd)
+    run_env = os.environ.copy()
+    run_env['LC_ALL'] = 'C'
+    run_env['TEXINPUTS'] = '%s:%s' % \
+                           (global_options.input_dir, run_env.get('TEXINPUTS',""))
+
+    ### unknown why this is necessary
+    universal_newlines = True
+    if sys.platform == 'mingw32':
+        universal_newlines = False
+        ### use os.system to avoid weird sleep() problems on
+        ### GUB's python 2.4.2 on mingw
+        # make file to write to
+        output_dir = tempfile.mkdtemp()
+        output_filename = os.path.join(output_dir, 'output.txt')
+        # call command
+        cmd += " > %s" % output_filename
+        oldtexinputs = os.environ.get ('TEXINPUTS')
+        os.environ['TEXINPUTS'] = run_env['TEXINPUTS']
+        returncode = os.system(cmd)
+        if oldtexinputs:
+            os.environ['TEXINPUTS'] = oldtexinputs
+        else:
+            del os.environ['TEXINPUTS']
+        parameter_string = open(output_filename).read()
+        if returncode != 0:
+            warning (_ ("Unable to auto-detect default settings:\n"))
+        # clean up
+        os.remove(output_filename)
+        os.rmdir(output_dir)
+    else:
+        proc = subprocess.Popen (cmd,
+            env=run_env,
+            universal_newlines=universal_newlines,
+            shell=True,
+            stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        (parameter_string, error_string) = proc.communicate ()
+        if proc.returncode != 0:
+            warning (_ ("Unable to auto-detect default settings:\n%s")
+                    % error_string)
     os.unlink (tmpfile)
     if os.path.exists (auxfile):
         os.unlink (auxfile)
@@ -210,12 +247,22 @@ def get_latex_textwidth (source, global_options):
     if m:
         columnsep = float (m.group (1))
 
-    textwidth = 0
     m = re.search ('textwidth=([0-9.]+)pt', parameter_string)
     if m:
         textwidth = float (m.group (1))
-        if columns:
-            textwidth = (textwidth - columnsep) / columns
+    else:
+        warning (_ ("cannot detect textwidth from LaTeX"))
+        return textwidth
+
+    debug ('Detected values:')
+    debug ('  columns = %s' % columns)
+    debug ('  columnsep = %s' % columnsep)
+    debug ('  textwidth = %s' % textwidth)
+
+    if m and columns:
+        textwidth = (textwidth - columnsep) / columns
+        debug ('Adjusted value:')
+        debug ('  textwidth = %s' % textwidth)
 
     return textwidth
 
@@ -256,9 +303,10 @@ class BookLatexOutputFormat (BookBase.BookOutputFormat):
     def input_fullname (self, input_filename):
         # Use kpsewhich if available, otherwise fall back to the default:
         if ly.search_exe_path ('kpsewhich'):
-            return os.popen ('kpsewhich ' + input_filename).read()[:-1]
-        else:
-            return BookBase.BookOutputFormat.input_fullname (self, input_filename)
+            trial = os.popen ('kpsewhich ' + input_filename).read()[:-1]
+            if trial:
+                return trial
+        return BookBase.BookOutputFormat.input_fullname (self, input_filename)
 
     def process_chunks (self, chunks):
         for c in chunks:
@@ -271,8 +319,11 @@ class BookLatexOutputFormat (BookBase.BookOutputFormat):
     def snippet_output (self, basename, snippet):
         str = ''
         rep = snippet.get_replacements ();
-        rep['base'] = basename
-        str += self.output_print_filename (basename, snippet)
+        rep['base'] = basename.replace ('\\', '/')
+        rep['filename'] = os.path.basename (snippet.filename).replace ('\\', '/')
+        rep['ext'] = snippet.ext
+        if PRINTFILENAME in snippet.option_dict:
+            str += self.output[PRINTFILENAME] % rep
         if VERBATIM in snippet.option_dict:
             rep['verb'] = snippet.verb_ly ()
             str += self.output[VERBATIM] % rep